/Engine/Source/Runtime/HeadMountedDisplay/Public/IHeadMountedDisplay.h
ReturnsEHMDWornState::Wornif we detect that the user is wearing the HMD,EHMDWornState::NotWornif we detect the user is not wearing the HMD, andEHMDWornState::Unknownif we cannot detect the state.
virtual [EHMDWornState::Type](API\Runtime\HeadMountedDisplay\EHMDWornState__Type) GetHMDWornState()